Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Affected Software	Calendar Object Validation Vulnerability - CVE-2008-3477	File Format Parsing Vulnerability - CVE-2008-3471	Formula Parsing Vulnerability - CVE-2008-4019	Aggregate Severity Rating
Excel 2000 Service Pack 3	Critical Remote Code Execution	Critical Remote Code Execution	Critical Remote Code Execution	Critical
Excel 2002 Service Pack 3	Important Remote Code Execution	Important Remote Code Execution	Important Remote Code Execution	Important
Excel 2003 Service Pack 2	Important Remote Code Execution	Important Remote Code Execution	Important Remote Code Execution	Important
Excel 2003 Service Pack 3	Important Remote Code Execution	Important Remote Code Execution	Important Remote Code Execution	Important
Excel 2007	None	Important Remote Code Execution	Important Remote Code Execution	Important
Excel 2007 Service Pack 1	None	Important Remote Code Execution	Important Remote Code Execution	Important
Microsoft Office Excel Viewer 2003	None	Important Remote Code Execution	Important Remote Code Execution	Important
Microsoft Office Excel Viewer 2003 Service Pack 3	None	Important Remote Code Execution	Important Remote Code Execution	Important
Microsoft Office Excel Viewer	None	Important Remote Code Execution	Important Remote Code Execution	Important
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats	None	Important Remote Code Execution	Important Remote Code Execution	Important
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1	None	Important Remote Code Execution	Important Remote Code Execution	Important
Microsoft Office SharePoint Server 2007	None	None	Important Remote Code Execution	Important
Microsoft Office SharePoint Server 2007 Service Pack 1	None	None	Important Remote Code Execution	Important
Microsoft Office SharePoint Server 2007 x64 Edition	None	None	Important Remote Code Execution	Important
Microsoft Office SharePoint Server 2007 x64 Edition Service Pack 1	None	None	Important Remote Code Execution	Important
Microsoft Office 2004 for Mac	None	Important Remote Code Execution	Important Remote Code Execution	Important
Microsoft Office 2008 for Mac	None	Important Remote Code Execution	Important Remote Code Execution	Important
Open XML File Format Converter for Mac	None	Important Remote Code Execution	Important Remote Code Execution	Important

A remote code execution vulnerability exists in the way Excel processes a VBA Performance Cache. The vulnerability could allow remote code execution if a user opens a specially crafted Excel file in a VBA Performance Cache. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-3477.

Manage the software and security updates you need to deploy to the servers, desktop, and mobile systems in your organization. For more information see the TechNet Update Management Center. The Microsoft TechNet Security Web site provides additional information about security in Microsoft products.

Security updates are available from Microsoft Update, Windows Update, and Office Update. Security updates are also available from the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update."

Finally, security updates can be downloaded from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content made available through Windows Update and Microsoft Update, including security updates, drivers and service packs. By searching using the security bulletin number (such as, “MS07-036”), you can add all of the applicable updates to your basket (including different languages for an update), and download to the folder of your choosing. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ.

Detection and Deployment Guidance

Microsoft has provided detection and deployment guidance for this month’s security updates. This guidance will also help IT professionals understand how they can use various tools to help deploy the security update, such as Windows Update, Microsoft Update, Office Update, the Microsoft Baseline Security Analyzer (MBSA), the Office Detection Tool, Microsoft Systems Management Server (SMS), and the Extended Security Update Inventory Tool. For more information, see Microsoft Knowledge Base Article 910723.

Microsoft Baseline Security Analyzer

Microsoft Baseline Security Analyzer (MBSA) allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations. For more information about MBSA, visit Microsoft Baseline Security Analyzer.

The following table provides the MBSA detection summary for this security update.

Software	MBSA 2.1
Excel 2000 Service Pack 3	No
Excel 2002 Service Pack 3	Yes
Excel 2003 Service Pack 2	Yes
Excel 2007	Yes
Excel 2007 Service Pack 1	Yes
Microsoft Office Excel Viewer 2003	Yes
Microsoft Office Excel Viewer 2003 Service Pack 3	Yes
Microsoft Office Excel Viewer	Yes
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats	Yes
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1	Yes
Microsoft Office SharePoint Server 2007	Yes
Microsoft Office SharePoint Server 2007 Service Pack 1	Yes
Microsoft Office SharePoint Server 2007 x64 Edition	Yes
Microsoft Office SharePoint Server 2007 x64 Edition Service Pack 1	Yes

For more information about MBSA 2.1, see MBSA 2.1 Frequently Asked Questions.

Note For customers using legacy software not supported by MBSA 2.0.1, Microsoft Update, and Windows Server Update Services: please visit Microsoft Baseline Security Analyzer and reference the Legacy Product Support section on how to create comprehensive security update detection with legacy tools.

Windows Server Update Services

By using Windows Server Update Services (WSUS), administrators can deploy the latest critical updates and security updates for Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site.

Systems Management Server

The following table provides the SMS detection and deployment summary for this security update.

Software	SMS 2.0	SMS 2003 with SUSFP	SMS 2003 with ITMU	Configuration Manager 2007
Excel 2000 Service Pack 3	Yes	Yes	No	No
Excel 2002 Service Pack 3	Yes	Yes	Yes	Yes
Excel 2003 Service Pack 2	Yes	Yes	Yes	Yes
Excel 2007	No	No	Yes	Yes
Excel 2007 Service Pack 1	No	No	Yes	Yes
Microsoft Office Excel Viewer 2003	Yes	Yes	No	No
Microsoft Office Excel Viewer 2003 Service Pack 3	Yes	Yes	No	No
Microsoft Office Excel Viewer	No	No	Yes	Yes
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats	No	No	Yes	Yes
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1	No	No	Yes	Yes
Microsoft Office SharePoint Server 2007	No	No	Yes. See Note for Microsoft Office SharePoint Server 2007 below	Yes. See Note for Microsoft Office SharePoint Server 2007 below
Microsoft Office SharePoint Server 2007 Service Pack 1	No	No	Yes. See Note for Microsoft Office SharePoint Server 2007 below	Yes. See Note for Microsoft Office SharePoint Server 2007 below
Microsoft Office SharePoint Server 2007 x64 Edition	No	No	Yes. See Note for Microsoft Office SharePoint Server 2007 below	Yes. See Note for Microsoft Office SharePoint Server 2007 below
Microsoft Office SharePoint Server 2007 x64 Edition Service Pack 1	No	No	Yes. See Note for Microsoft Office SharePoint Server 2007 below	Yes. See Note for Microsoft Office SharePoint Server 2007 below

For SMS 2.0 and SMS 2003, the SMS SUS Feature Pack (SUSFP), which includes the Security Update Inventory Tool (SUIT), can be used by SMS to detect security updates. See also Downloads for Systems Management Server 2.0.

For SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates (ITMU) can be used by SMS to detect security updates that are offered by Microsoft Update and that are supported by Windows Server Update Services. For more information about the SMS 2003 ITMU, see SMS 2003 Inventory Tool for Microsoft Updates. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications. For more information about the Office Inventory Tool and other scanning tools, see SMS 2003 Software Update Scanning Tools. See also Downloads for Systems Management Server 2003.

System Center Configuration Manager 2007 uses WSUS 3.0 for detection of updates. For more information about Configuration Manager 2007 Software Update Management, visit System Center Configuration Manager 2007.

For more information about SMS, visit the SMS Web site.

For more detailed information, see Microsoft Knowledge Base Article 910723: Summary list of monthly detection and deployment guidance articles.

Note for Microsoft Office SharePoint Server 2007 The detection table described above is based on single-server Microsoft Office SharePoint Server 2007 deployments. The detection tools do not detect the applicability of the update on systems configured as part of a multiple-system SharePoint server farms. For more information about deploying updates on both stand-alone and multi server configurations, see Deploy software updates for Office SharePoint Server 2007.

Note If you have used an Administrative Installation Point (AIP) for deploying Office 2000, Office XP or Office 2003, you may not be able to deploy the update using SMS if you have updated the AIP from the original baseline. For more information, see the Office Administrative Installation Point heading in this section.

Office Administrative Installation Point

If you installed your application from a server location, the server administrator must update the server location with the administrative update and deploy that update to your system.

•	For supported versions of Microsoft Office 2000, see How to Create an Administrative Installation Point. For more information about how to change the source for a client system from an updated administrative installation point to an Office 2000 Service Pack 3 (SP3), see Microsoft Knowledge Base Article 932889. Note If you plan to manage software updates centrally from an updated administrative image, you can find more information in the article Updating Office 2000 Clients from a Patched Administrative Image.
•	For supported versions of Microsoft Office XP, see Creating an Administrative Installation Point. For more information on how to change the source for a client system from an updated administrative installation point to an Office XP original baseline source, see Microsoft Knowledge Base Article 922665. Note If you plan to manage software updates centrally from an updated administrative image, you can find more information in the article Updating Office XP Clients from a Patched Administrative Image.
•	For supported versions of Microsoft Office 2003, see Creating an Administrative Installation Point. For more information on how to change the source for a client computer from an updated administrative installation point to an Office 2003 original baseline source or Service Pack 2 (SP2), see Microsoft Knowledge Base Article 902349. Note If you plan to manage software updates centrally from an updated administrative image, you can find more information in the article, Distributing Office 2003 Product Upgrades.
•	For supported versions of the 2007 Microsoft Office system, see Create a network installation point for the 2007 Office system. Note If you plan to manage security updates centrally, use Windows Server Update Services. For more information about how to deploy security updates for the 2007 Microsoft Office system using Windows Server Update Services, visit the Windows Server Update Services Web site.

Update Compatibility Evaluator and Application Compatibility Toolkit

Updates often write to the same files and registry settings required for your applications to run. This can trigger incompatibilities and increase the time it takes to deploy security updates. You can streamline testing and validating Windows updates against installed applications with the Update Compatibility Evaluator components included with Application Compatibility Toolkit 5.0.

The Application Compatibility Toolkit (ACT) contains the necessary tools and documentation to evaluate and mitigate application compatibility issues before deploying Microsoft Windows Vista, a Windows Update, a Microsoft Security Update, or a new version of Windows Internet Explorer in your environment.

Affected Software

For information about the specific security update for your affected software, click the appropriate link: